Waves - Lesson 12 Quiz

What does it mean to broadcast in the context of radio and television signals?

• To receive and display signals on a device

• To transmit or transfer a signal in some form of a wave

• To convert radio waves into pictures and sounds

• To encode information into binary code

Tags

NGSS.MS-PS4-3

How do radio waves compare to light waves?

• Radio waves are shorter and can be seen by the human eye

• Radio waves are like light waves but much longer and invisible to the human eye

• Radio waves and light waves are the same length and can both be seen

• Radio waves are shorter and cause damage to the human body

What is the role of binary code in communication with spacecraft?

• It is used to create images from radio waves

• It is used to increase the frequency of the radio waves

• It is used to communicate information using on and off signals representing 0 and 1

• It is used to convert radio waves into TV signals

Tags

NGSS.MS-PS4-3

Why are radio waves ideal for communication?

• They can be seen by the human eye

• They cause damage when absorbed by the human body

• They can be transmitted easily through air and space without causing damage

• They are absorbed by the human body